Just ordered "Thing Explainer" on Amazon. It delivered OK to my Android and PC Kindle apps, but my plain Kindle was greyed out on the Deliver menu and won't deliver. Amazon support says the publisher wants it this way. Was gibt?

dantruong02 wrote:Just ordered "Thing Explainer" on Amazon. It delivered OK to my Android and PC Kindle apps, but my plain Kindle was greyed out on the Deliver menu and won't deliver. Amazon support says the publisher wants it this way. Was gibt?